Resin composite, structure, method for producing a resin composite and method for producing a structure

Abstract

A resin composite material 10 according to the present invention comprises: a powder coating material 20 usable in an electrostatic coating process or in fluidized bed sintering; an inorganic base 30; and a thermoplastic resin 40. The powder coating material 20 comprises a heat-film-forming resin 26 and a crosslinking agent and is formable by one of the following forming processes: injection molding, blow molding, extrusion molding, and vacuum forming.

Description

TECHNICAL AREA

[0001] The application claims priority over Japanese patent application No. 2023-164059, filed on September 26, 2023. Reference is hereby made to that application in its entirety.

[0002] The present invention relates to a resin composite material, a molded part, a method for producing a resin composite material and a method for producing a molded part. BACKGROUND

[0003] Powder coating materials that contain no organic solvents, have a low environmental impact, are highly processable, and are less harmful to the environment are gaining increasing attention, particularly in coating compositions where awareness of environmental impact reduction has grown and the replacement of existing products with environmentally friendly alternatives is being demanded. Since such a powder coating material, used in electrostatic or fluidized bed coating processes, is relatively inexpensive, thermally crosslinkable, easily colored, exhibits high adhesion to a substrate, and forms a thermally crosslinkable film with high corrosion protection, weather resistance, and durability, demand is rising for electronic components, office equipment, household appliances, building materials, automotive parts, and similar applications.

[0004] The electrostatic coating process is a method in which a voltage is applied between an electrically connected object to be coated and a spray device for a coating material, creating an electrostatic field between the two and charging the powder coating material to form a film on the object. The fluidized bed coating process is a method in which a powder coating material is suspended by air or a similar means, forming a powder coating film on the surface of a previously heated object within that area.

[0005] The thermally crosslinkable powder coating material used in such a coating process consists of a combination of oligomer or polymer particles, which are basically melt-formed by heating and have a crosslinking point, and crosslinking agent particles that are compatible with the polymer, and is fixed to the surface of the object to be coated in order to carry out a film formation treatment and a crosslinking treatment.Examples of crosslinking processes, depending on the type of crosslinking process, include: a process for crosslinking a bisphenol-A type epoxy resin with epoxy groups present at both ends by forming an oxazolidine ring using a reaction between a blocked isocyanate and a hydroxyl group using ε-caprolactam (non-patent literature 1), a process for crosslinking a bisphenol-A type epoxy resin with epoxy present at both ends using ε-caprolactam (non-patent literature 2), a process using a bonding reaction between an epoxy group and dicyandiamide (non-patent literature 3), one obtained by crosslinking a carboxylic acid present at both ends of a polyester with a polyfunctional epoxy compound, such as a triglycyl isocyanurate (non-patent literature 4), and processes that utilize an esterification reaction.

[0006] However, it is known that an epoxy-based material, ε-caprolactam, or the like is environmentally toxic because it reacts with biological components such as proteins. Therefore, in recent years, β-hydroxyalkylamide (patent reference 1) has been developed as a compound with lower environmental impact, and a process for crosslinking this material with multi-functional carboxy-functional polyesters via a dehydration condensation (commonly known as Primid® crosslinkers; non-patent reference 2) is gaining increasing acceptance.

[0007] Although a powder coating material is very advantageous, particles of the powder coating material that could not be fixed to the substrate during coating can be recovered and reused; however, the particle size gradually decreases as a result of collisions between the particles and the object being coated, and when a suitable coating quantity can no longer be achieved, the powder coating material is discarded. This amount amounted to more than 10% to 20% of the quantity of powder coating material used, which is a significant problem. Furthermore, it is difficult to separate polymer particles and crosslinking agent particles once they have been mixed together, and as described in patent literature 2, the residue is cured and used for another object; a known method of use for this does not exist.

[0008] In contrast, a universally applicable thermoplastic resin can be used in various forming processes such as injection molding, extrusion, and vacuum forming, and its range of applications is very broad, for example, as packaging material for shipments, as product display shelves, and as simple structures. If a powder coating material can be used for such an application, the quantity previously disposed of can be reused. Patent literature 3 discloses that a thermoplastic resin such as polyethylene, polypropylene, or ABS can be added to a powder coating material using a polyester, as well as a leveling agent, a pigment, or the like; however, the subject matter relates to a thermally crosslinkable film, and a composite material that is thermoformable, i.e., a powder coating material as an additive for a thermoplastic resin, is not intended.However, if a powder coating material is mixed with common thermoplastics such as polyethylene, polypropylene, ABS and PET, the crosslinking agent-containing powder coating material first hardens itself, since the temperature range during kneading is approximately 180°C to 300°C, and separates from the thermoplastic resin and solidifies, making the production of a composite difficult. STATE OF THE TECHNOLOGY NON-PATENT LITERATURE Non-patent literature 1: Thermosetting Resin, Volume 6, No. 2, pp. 87-93 (1985) Non-patent literature 2: Network Polymer, Volume 38, No. 2 (2017) Non-patent literature 3: Thermosetting Resin, Volume 8, No. 3, pp. 141-151 (1987) Non-patent literature 4: DNT Coating Technique Information, Volume 10, pp. 32-37, (2010) PATENT LITERATURE Patent Literature 1: JP 2010-508424 A Patent literature 2: Japanese patent no. 656,4988 Patent Literature 3: JP 62-236870 A SUMMARY OF THE INVENTION: PROBLEM SOLVED BY THE INVENTION

[0009] The present invention relates to a thermoplastic resin composite material which contains a thermally crosslinkable powder coating material and is thermoformable. MEANS TO SOLVENT THE PROBLEM

[0010] The present invention is characterized in that a thermally crosslinkable powder coating material, an inorganic base and a thermoplastic resin are combined together.

[0011] In particular, the invention relates to the following: The resin composite material according to a first embodiment comprises a powder coating material that can be used in an electrostatic coating process or a fluidized bed sintering process, an inorganic base and a thermoplastic resin and is thermally formable. The resin composite material according to a second embodiment comprises the powder coating material of the first embodiment, a heat-film-forming resin and a crosslinking agent.

[0012] The structure according to a first embodiment consists of the resin composite material of the second embodiment and has a predetermined shape.

[0013] The process for producing a resin composite material according to a first embodiment comprises a process for producing a resin composite material according to the first or second embodiment, wherein in a first step a mixture is produced by mixing an aqueous solution of a water-soluble inorganic base with a powder coating material usable in the electrostatic coating process or the fluidized bed sintering process; and in a second step the mixture is mixed with a thermoplastic resin.

[0014] The process for producing a resin composite material according to a second embodiment comprises a process for producing a resin composite material according to the first or second embodiment, wherein in a first step a mixture is produced by mixing an aqueous solution of a water-soluble inorganic base with a powder coating material usable in the electrostatic coating process or the fluidized bed sintering process; and in a second step the mixture is dried to produce a dry product; and in a third step a thermoplastic resin is mixed with the dry product.

[0015] The method for producing a structure according to the first embodiment comprises a step for producing a resin composite material according to the method of the first embodiment and a step for forming the resin composite material produced in this step into a structure with a predetermined shape.

[0016] The method for producing a structure according to the second embodiment comprises a step for producing a resin composite material according to the method of the second embodiment and a step for forming the resin composite material produced in this step into a structure with a predetermined shape.

[0017] Furthermore, according to a third embodiment, the resin composite material contains a thermally crosslinkable powder coating material and an inorganic base and is thermally formable.

[0018] Furthermore, the resin composite material according to a fourth embodiment is characterized in that the thermally crosslinkable resin composite material of the third embodiment comprises a polyester resin containing a carboxylic acid.

[0019] Furthermore, the process for producing a resin composite material according to the third embodiment comprises adding an aqueous solution of an inorganic base to a thermally crosslinkable powder coating material, which is then reacted with a thermoplastic resin to form a composite.

[0020] Furthermore, according to the fourth embodiment, the resin composite material comprises a powder coating material usable in an electrostatic coating process or a fluidized bed sintering process, an inorganic base and a thermoplastic resin, wherein the powder coating material comprises a heat-film forming resin and a crosslinking agent, and the resin composite material is formable by one of the following forming processes: injection molding, blow molding, extrusion molding and vacuum forming.

[0021] Furthermore, a structure according to the second embodiment is designed such that it comprises the resin composite material according to the fourth embodiment and has a predetermined shape.

[0022] Furthermore, a method for producing a resin composite material according to a fifth embodiment comprises a method for producing a resin composite material according to the fourth embodiment, in which, in a first step, a mixture is produced by mixing an aqueous solution of a water-soluble inorganic base with a powder coating material usable in the electrostatic coating process or in a fluidized bed sintering process; and in a second step, the mixture is mixed with a thermoplastic resin.

[0023] Furthermore, a method for producing a resin composite material according to a sixth embodiment comprises a method for producing a resin composite material according to the fourth embodiment, in which, in a first step, a mixture is produced by mixing an aqueous solution of a water-soluble inorganic base with a powder coating material usable in the electrostatic coating process or in a fluidized bed sintering process; and, in a second step, the mixture is dried to produce a dry product; and, in a third step, a thermoplastic resin is mixed with the dry product.

[0024] Furthermore, a method for producing a structure according to a third embodiment comprises a first step for producing a resin composite material according to the method of the fifth embodiment and a step for forming the resin composite material produced in this step into a structure with a predetermined shape.

[0025] Furthermore, the method for producing a structure according to a fourth embodiment comprises a step for producing a resin composite material according to the method of the sixth embodiment and a step for forming the resin composite material produced in this step into a structure with a predetermined shape. BRIEF DESCRIPTION OF THE FIGURES Fig. Figure 1 is a representation of a resin composite material according to an embodiment of the present invention (hereinafter referred to as the present embodiment). Fig. Figure 2 is a flowchart of a process for producing the resin composite material according to the present embodiment. Fig. Figure 3 is a flowchart of a further process for producing the resin composite material according to the present embodiment. Fig. Figure 4 is a microscopic image (photograph) of the powder coating material before coating. Fig. Figure 5 is a microscopic image (photograph) of the powder coating material discarded after coating. Fig. Figure 6 is a microscopic image (photograph) of a shaped resin composite material. Fig. Figure 7 is a photograph of a molded part formed by injection molding. FORM OF EXECUTION OF THE PRESENT INVENTION

[0026] A thermoplastic resin composite (resin composite: reference numeral 10 in the figure) according to the present embodiment denotes a composite in which a thermally crosslinkable powder coating material (an example of a powder coating material: reference numeral 20 in the figures) is combined with various thermoplastic resins (cf. reference numeral 40 in the figures), such as olefin resin, e.g. polyethylene or polypropylene; aliphatic polyester with properties such as biodegradability; semi-aromatic polyester, e.g. PET or PBT, or aliphatic-aromatic copolyester resin; polystyrene resin; acrylic resin; ABS resin; nylon or fluoropolymers.

[0027] The thermally crosslinkable powder coating material according to this embodiment is a material that contains no solvents, water, or other media and which, after heating polyester to film formation (after the polyester has undergone a thermal film formation treatment to form a thermally film-treated polyester; an example of a heat-film forming resin, see reference 26 in the figure), is thermally crosslinked with a crosslinking agent pre-incorporated in the polyester (see reference 24 in the figure), thereby achieving high durability, weather resistance, and adhesion. Known methods for forming crosslinked structures include block isocyanates, epoxy systems, and dehydration condensation of hydroxyl groups and carboxylic acids. However, with the advent of β-hydroxyalkylamides as crosslinking agents, dehydration condensation processes using these agents are becoming the standard.In addition to the base resin and the crosslinking agent, the powder coating material can also contain inorganic particles such as silicon dioxide, aluminum oxide, and calcium carbonate, UV inhibitors such as titanium dioxide, as well as carbon and various dyes. It should be noted that reference numeral 22 in the drawings denotes the pigment contained in the thermally crosslinkable powder coating material.

[0028] The polyester in the present embodiment is a dehydration condensation product of aliphatic diol such as ethylene glycol, 1,4-butanediol, 1,3-propanediol, 1,6-hexanediol and neopentyl glycol and polyvalent carboxylic acid compound such as phthalic acid, isophthalic acid, terephthalic acid, phthalic anhydride, 1,4-cyclohexanedicarboxylic acid, adipic acid, sebacic acid, dodecanedioic acid and the like, wherein melting point, crosslinking density and the like are controlled by the structure of the selected compound, the molecular weight, the number of remaining carboxyl groups and the like.

[0029] The inorganic base used in the present embodiment (see reference numeral 30 in the figures) must be water-soluble or hygroscopic; hydroxides such as lithium, sodium, potassium, and calcium hydroxide, as well as carbonates or formates of lithium, sodium, and potassium, are preferred. From the perspective of storage and handling, sodium hydroxide and carbonates such as sodium bicarbonate and sodium carbonate are preferred compounds. Inorganic alkalis not only inhibit the dehydration condensation of hydroxyl groups and carboxylic acids, but at high temperatures in the presence of water or steam, they can also cleave ester bonds and thus decompose the polymer matrix.Organic bases, such as those represented by amines, are also bases, but they react with carboxylic acids; in the case of polyhydric amines, they also form amide bonds, which are more stable than ester bonds, which is why they are disadvantageous compounds for the present invention.

[0030] The inorganic base is added in powder form or as an aqueous solution. As described above, water is essential for inhibiting the crosslinking of the powder coating material; therefore, when using the powder, it is preferred to use a small amount of water or to use the base in a moist state. The amount of water to be added is 0.1 to 200 parts by weight, preferably 0.2 to 40 parts by weight, based on 100 parts by weight of the inorganic base. In this process, the powder coating material and the inorganic base are mixed using a small amount of water without excess water being released. Since the powder coating material is hydrophobic, a material with high water-binding capacity, such as a surfactant or sodium salt of fine cellulose, methylcellulose, or carboxymethylcellulose, can be added during kneading.

[0031] When added in the form of an aqueous solution, the concentration is preferably 0.01 to 30 parts by weight per 100 parts by weight of water; the amount added is preferably 1 to 500 parts by weight per 100 parts by weight of the powder coating material. If the concentration of the inorganic base is too low, the desired effect is difficult to achieve; if the concentration is too high, the processability deteriorates; and at excessively high concentrations, the processability increases due to the excess water, making handling difficult. Preferably, the amount added is 5 to 50 parts by weight. Since the powder coating material is hydrophobic, various activators such as sodium salts of dodecylbenzenesulfonic acid can be added to improve wettability.

[0032] A powder coating material mixture (an example of a mixture) to which an inorganic base has been added is kneaded and mixed sufficiently with a powder kneader, a mixer or the like, and then mixed with a thermoplastic resin using a resin kneader to form a thermoplastic resin composite material (see Fig. 2) Since a sufficient kneading process is required when using inorganic alkalis in powder form, processing with an aqueous solution is simpler, provided that excess water is taken care to remove. However, if the concentration of the inorganic bases is reduced during the working process, the mixture can be heated and dried to remove the excess water, even if this lengthens the manufacturing process (see...). Fig. 3).

[0033] Thermoforming according to the present embodiment is a method for producing a molded part with a predetermined shape by shaping the resin composite material 10 produced by the manufacturing process described above (see, for example, reference numeral 50 in Fig. 7) This refers to a shaping process such as that used in the shaping of a general thermoplastic resin, like injection molding, blow molding, extrusion molding, and vacuum forming. Injection molding and extrusion are particularly suitable for recycling, as they can be used to produce transport and display trays, panels, tables and chairs, and loading platforms for transport trolleys; these can also be reused by shredding.

[0034] A molded part is an example of a structure with a predetermined shape. In the preceding description, the resin composite material is formed into a molded part with a predetermined shape; however, a structure comprising the resin composite material 10 can also be produced using a processing method (bonding, fusing, cutting, or another processing method) that differs from the shaping of the resin composite material 10.

[0035] The shapes of transport and exhibition trays, panels, tables, chairs, loading platforms of transport trolleys or the like are examples of predefined shapes. APPLICATION EXAMPLE PRELIMINARY TEST Commercially available powder coating material

[0036] To investigate the particle state before and after electrostatic coating, Biliusia was used. ®PL 7000, manufactured by Nippon Paint Industrial Corporation, as powder coating material 1 (powder coating material obtained by crosslinking the polyester with β-hydroxyalkylamide), the particle state observed with a manufactured microscope of type VHX-2000 from Keyence Corporation. Fig. Figure 4 shows the condition before electrostatic coating, and Fig. Figure 5 shows the condition after electrostatic coating.

[0037] Furthermore, the particle size was determined using a dry particle size analyzer, type PSA 112190 L / D, from Antpar Co. It was found that the volume-mean particle size decreased from 33 µm before coating to 22 µm after coating; microscopic observation also showed a trend toward a decrease in particle size. The powder coating material after coating is used as powder coating material 2.

[0038] The thermoplastic resins used in the exemplary embodiments are as follows: Polypropylene: Novatec PP BC-06C, manufactured by Japan Polypropylene Corporation; ABS: GR-2000, manufactured by Denka Co. Ltd. Example 1

[0039] One hundred parts by weight of powder coating material 2 were prepared, to which one part by weight sodium carbonate powder, 15 parts by weight water, and one part by weight fine cellulose were added; the mixture was then thoroughly kneaded using a powder kneader. By mixing 20 parts by weight of the kneaded mixture with 80 parts by weight polypropylene in a plastics mixer, the composite material 1 was obtained in good condition. The composite material 1 could be formed into a sheet-shaped body using an injection molding machine. Example 2

[0040] One hundred parts by weight of powder coating material 2 were prepared, to which 25 parts by weight of an aqueous sodium carbonate solution with a concentration adjusted to 2 wt% and 4 parts by weight of an aqueous sodium dodecylbenzenesulfonate solution (abbreviated DBS) with a concentration of 2 wt% were added; the mixture was then kneaded. After mixing 20 parts by weight of the kneaded mixture with 80 parts by weight of polypropylene using a plastic mixer, the composite material 2 was obtained in good condition. The composite material 2 could be molded into a sheet-shaped body using an injection molding machine. Example 3

[0041] One hundred parts by weight of powder coating material 2 were prepared, to which 80 parts by weight of an aqueous sodium carbonate solution with a concentration adjusted to 1 wt% and 4 parts by weight of an aqueous DBS solution with a concentration of 2 wt% were added; the mixture was then kneaded. The mixture was dried for 2 hours at 130°C. By mixing 20 parts by weight of the dried mixture with 80 parts by weight of ABS using a plastic mixer, the composite material 3 was obtained in good condition. The composite material 3 could be molded into a sheet-like body using an injection molding machine. Example 4

[0042] One hundred parts by weight of powder coating material 1 were prepared, to which 25 parts by weight of an aqueous sodium carbonate solution with a concentration adjusted to 2 wt% and 4 parts by weight of an aqueous DBS solution with a concentration of 2 wt% were added; the mixture was then kneaded. By mixing 20 parts by weight of the mixture with 80 parts by weight of polypropylene using a plastics mixer, the composite material 4 was obtained in good condition. The composite material 4 could be formed into a sheet-shaped body using an injection molding machine. Example 5

[0043] One hundred parts by weight of powder coating material 2 were prepared, to which 25 parts by weight of an aqueous sodium carbonate solution with a concentration adjusted to 2 wt% and 4 parts by weight of an aqueous DBS solution with a concentration of 2 wt% were added; the mixture was then kneaded. By mixing 50 parts by weight of the mixture with 50 parts by weight of polypropylene using a plastic mixer, the composite material 5 was obtained in good condition. The composite material 5 could be formed into a sheet-like body using an injection molding machine. Subsequently, thin slices were taken from this molded body and their surface was examined using a VHX-2000 microscope. Fig. Figure 6 shows the image resulting from this investigation. As shown in this figure, fragmentary composite materials as well as spherical polyester can be observed after kneading. Example 6

[0044] The powder coating material 3 used was Nippon Paint Industrial Coatings' PL 1000 powder (a powder coating material in which a bisphenol-A epoxy resin is cured by block isocyanate), which remained after electrostatic coating. One hundred parts by weight of this powder were prepared, to which 25 parts by weight of an aqueous sodium hydroxide solution with a concentration of 2 wt% and 4 parts by weight of an aqueous DBS solution with a concentration of 2 wt% were added; the mixture was kneaded. Subsequently, 15 parts by weight of this mixture were blended with 85 parts by weight of polypropylene using a plastics mixer to obtain composite material 6. Composite material 6 could be molded into a sheet-like body using an injection molding machine. COMPARISON EXAMPLES Comparison example 1 If the powder coating material is mixed unchanged with polypropylene (1)

[0045] When 20 parts by weight of powder coating material 1 and 80 parts by weight of polypropylene were mixed in a plastic mixer, solids precipitated out, preventing the composite material from being removed. Comparative example 2: If the powder coating material is mixed unchanged with polypropylene (2)

[0046] When 20 parts by weight of powder coating material 2 and 80 parts by weight of polypropylene were mixed in a plastic mixer, solids precipitated out, preventing the composite material from being removed. Comparative example 3: If the powder coating material is mixed unchanged with polypropylene (3)

[0047] When 20 parts by weight of powder coating material 3 and 80 parts by weight of polypropylene were mixed in a plastic mixer, solids precipitated out, preventing the composite material from being removed. Comparative example 4: When water is added (1)

[0048] One hundred parts by weight of powder coating material 1 were prepared and mixed with 25 parts by weight of water and 4 parts by weight of an aqueous DBS solution with a concentration of 2% by weight; the mixture was kneaded. When 20 parts of this mixture were mixed with 80 parts of polypropylene in a plastics mixer, solids precipitated, preventing the composite material from being removed. Comparative example 5: When water is added (2)

[0049] One hundred parts by weight of powder coating material 2 were prepared and mixed with 25 parts by weight of water and 4 parts by weight of an aqueous DBS solution with a concentration of 2% by weight; the mixture was kneaded. When 20 parts of this mixture were mixed with 80 parts of polypropylene in a plastics mixer, solids precipitated out, preventing the composite material from being removed. Comparative example 6: When water is added (3)

[0050] One hundred parts by weight of powder coating material 3 were prepared and mixed with 25 parts by weight of water and 4 parts by weight of an aqueous DBS solution with a concentration of 2% by weight; the mixture was kneaded. When 20 parts of this mixture were mixed with 80 parts of polypropylene in a plastics mixer, solids precipitated out, preventing the composite material from being removed. Comparative example 7: When ethylenediamine is used as an organic base (1)

[0051] One hundred parts by weight of powder coating material 1 were prepared and mixed with 25 parts by weight of ethylenediamine at a concentration adjusted to 4 wt% and 4 parts by weight of an aqueous DBS solution at a concentration of 2 wt%; the mixture was kneaded. When 20 parts of this mixture were mixed with 80 parts of polypropylene in a plastics mixer, solids precipitated, preventing the composite material from being removed. Comparative example 8: When ethylenediamine is used as an organic base (2)

[0052] One hundred parts by weight of powder coating material 2 were prepared and mixed with 25 parts by weight of ethylenediamine at a concentration adjusted to 4 wt% and 4 parts by weight of an aqueous DBS solution at a concentration of 2 wt%; the mixture was kneaded. When 20 parts of this mixture were mixed with 80 parts of polypropylene in a plastics mixer, solids precipitated, preventing the composite material from being removed. Comparative example 9: When ethylenediamine is used as an organic base (3)

[0053] One hundred parts by weight of powder coating material 3 were prepared and mixed with 25 parts by weight of ethylenediamine at a concentration adjusted to 4 wt% and 4 parts by weight of an aqueous DBS solution at a concentration of 2 wt%; the mixture was kneaded. When 20 parts of this mixture were mixed with 80 parts of polypropylene in a plastics mixer, solids precipitated, preventing the composite material from being removed. discussion

[0054] In the exemplary embodiments, an inorganic base was added to the powder coating material, and both the composite and the molded parts produced therefrom could be obtained. In contrast, in comparative examples 1 to 3, the direct combination of the powder coating material and the thermoplastic resin, in comparative examples 4 to 6, the addition of only water during kneading, and in comparative examples 7 to 9, the use of an organic base resulted in no composite material being obtained after mixing. This clearly demonstrated that the simultaneous use of inorganic bases is extremely effective for achieving the objective of the present invention, namely to obtain a thermoplastic resin composite containing powder coating. DESCRIPTION OF REFERENCE MARKS 10 Resin composite material 20 Powder coating material 22 Pigment 24 networking agents 26 heat-film-forming resin 30 inorganic base 40 Thermoplastic resin 50 molded parts QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] JP 2023

[0001] JP 164059

[0001] JP 2010-508424 A

[0008] JP 656.4988

[0008] JP 62-236870 A

[0008] Cited non-patent literature

[0000] Thermosetting Resin, Volume 6, No. 2, pp. 87-93 (1985

[0008] Network Polymer, Volume 38, No. 2 (2017

[0008] Thermosetting Resin, Band 8, Nr. 3, S. 141-151 (1987

[0008] DNT Coating Technique Information, Band 10, S. 32-37, (2010

[0008]

Claims

Resin composite material comprising: a powder coating material that can be used in an electrostatic coating process or a fluidized bed sintering process; an inorganic base; and a thermoplastic resin; wherein the powder coating material comprises a heat-film forming resin and a crosslinking agent; and wherein the resin composite material is formable by one of the following forming processes: injection molding, blow molding, extrusion molding or vacuum forming. Structure with a predetermined shape, comprising the resin composite material according to claim 1. Method for producing the resin composite material according to claim 1, wherein in a first step a mixture is produced by mixing an aqueous solution of a water-soluble inorganic base with a powder coating material usable in an electrostatic coating process or a fluidized bed sintering process; and in a second step the mixture is mixed with a thermoplastic resin. A method for producing the resin composite material according to claim 1, wherein in a first step a mixture is produced by mixing an aqueous solution of a water-soluble inorganic base with a powder coating material usable in an electrostatic coating process or a fluidized bed sintering process; in a second step the mixture is dried to produce a dry product; and in a third step a thermoplastic resin is mixed with the dry product. Method for producing a structure, in which, in a first step, a resin composite material is produced by the method according to claim 3; and in a further step, the previously produced resin composite material is formed into a structure with a predetermined shape. Method for producing a structure, in which, in a first step, a resin composite material is produced by the method according to claim 4; and in a further step, the previously produced resin composite material is formed into a structure with a predetermined shape.

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